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以甲基丙烯酸甲酯/甲基丙烯酸(MMA/AA)共聚物为基本组分,加入尿素,以双甲基丙烯酸乙二醇酯(DMEG)为交联剂,本体聚合制得固溶态染料激光材料的基质。AA对激光染料Rh6G有增溶作用,MMA/AA=8/2(mol)时。Rh6G的浓度可达4×10~(-3)M。AA和尿素均有利于Rh6G二聚体转变为单分子,在MMA/AA=7.6/2.4(mol)溶液中,尿素为4％时,Rh6G的发射荧光光强I_F与在乙醇溶液中的I_F几乎相同。DMEG可有效地提高基质的T_g、硬度和热稳定性。基质有良好的透明性,其透光率基本上与纯PMMA相同。
With methyl methacrylate / methacrylic acid (MMA / AA) copolymer as the basic component, urea was added to ethylene glycol dimethacrylate (DMEG) Matrix of laser material. AA solubilizes laser dye Rh6G when MMA / AA = 8/2 (mol). Rh6G concentration of up to 4 × 10 ~ (-3) M. AA and urea are conducive to Rh6G dimer into a single molecule, in the MMA / AA = 7.6 / 2.4 (mol) solution, the urea 4%, the fluorescence intensity of Rh6G I_F and ethanol in ethanol almost I_F the same. DMEG can effectively improve the matrix T_g, hardness and thermal stability. The matrix has good transparency and its light transmittance is essentially the same as pure PMMA.